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linux/arch/powerpc/kvm
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Mihai Caraman 188e267ce2 KVM: PPC: e500mc: Add support for single threaded vcpus on e6500 core 
ePAPR represents hardware threads as cpu node properties in device tree.
So with existing QEMU, hardware threads are simply exposed as vcpus with
one hardware thread.

The e6500 core shares TLBs between hardware threads. Without tlb write
conditional instruction, the Linux kernel uses per core mechanisms to
protect against duplicate TLB entries.

The guest is unable to detect real siblings threads, so it can't use the
TLB protection mechanism. An alternative solution is to use the hypervisor
to allocate different lpids to guest's vcpus that runs simultaneous on real
siblings threads. On systems with two threads per core this patch halves
the size of the lpid pool that the allocator sees and use two lpids per VM.
Use even numbers to speedup vcpu lpid computation with consecutive lpids
per VM: vm1 will use lpids 2 and 3, vm2 lpids 4 and 5, and so on.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
[agraf: fix spelling]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-09-22 10:11:35 +02:00
..
book3s.c KVM: PPC: Remove the tasklet used by the hrtimer 2014-09-22 10:11:34 +02:00
book3s.h kvm: powerpc: book3s: Allow the HV and PR selection per virtual machine 2013-10-17 18:42:36 +02:00
book3s_32_mmu.c KVM: PPC: Book3S: Stop PTE lookup on write errors 2014-07-28 15:23:10 +02:00
book3s_32_mmu_host.c KVM: PPC: Book3S: Make magic page properly 4k mappable 2014-07-28 15:23:11 +02:00
book3s_32_sr.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_64_mmu.c KVM: PPC: Disable NX for old magic page using guests 2014-05-30 14:26:24 +02:00
book3s_64_mmu_host.c KVM: PPC: Book3S: Make magic page properly 4k mappable 2014-07-28 15:23:11 +02:00
book3s_64_mmu_hv.c Here are the PPC and ARM changes for KVM, which I separated because 2014-08-07 11:35:30 -07:00
book3s_64_slb.S KVM: PPC: Book3S PR: Rework SLB switching code 2014-05-30 14:26:30 +02:00
book3s_64_vio.c ppc: kvm: use anon_inode_getfd() with O_CLOEXEC flag 2013-08-26 13:19:56 +03:00
book3s_64_vio_hv.c KVM: PPC: Book3S: Introduce hypervisor call H_GET_TCE 2014-03-26 23:34:27 +11:00
book3s_emulate.c KVM: PPC: PR: Handle FSCR feature deselects 2014-07-31 10:23:46 +02:00
book3s_exports.c KVM: PPC: Make shared struct aka magic page guest endian 2014-05-30 14:26:21 +02:00
book3s_hv.c KVM: PPC: Book3S HV: Only accept host PVR value for guest PVR 2014-09-22 10:11:34 +02:00
book3s_hv_builtin.c PC, KVM, CMA: Fix regression caused by wrong get_order() use 2014-08-19 15:11:57 +02:00
book3s_hv_interrupts.S powerpc/kvm: Remove redundant save of SIER AND MMCR2 2014-07-11 12:55:07 +10:00
book3s_hv_ras.c KVM: PPC: Book3S HV: Access guest VPA in BE 2014-07-28 15:22:22 +02:00
book3s_hv_rm_mmu.c Patch queue for ppc - 2014-08-01 2014-08-05 09:58:11 +02:00
book3s_hv_rm_xics.c KVM: PPC: Enable IRQFD support for the XICS interrupt controller 2014-08-05 14:26:33 +02:00
book3s_hv_rmhandlers.S KVM: PPC: Book3S HV: Add register name when loading toc 2014-09-22 10:11:31 +02:00
book3s_interrupts.S KVM: PPC: Book3S PR: Fix ABIv2 on LE 2014-07-28 15:22:15 +02:00
book3s_mmu_hpte.c kvm: powerpc: book3s: pr: move PR related tracepoints to a separate header 2013-10-17 15:36:22 +02:00
book3s_paired_singles.c KVM: PPC: Allow kvmppc_get_last_inst() to fail 2014-07-28 15:23:14 +02:00
book3s_pr.c KVM: PPC: PR: Handle FSCR feature deselects 2014-07-31 10:23:46 +02:00
book3s_pr_papr.c KVM: PPC: Book3S PR: Take SRCU read lock around RTAS kvm_read_guest() call 2014-07-28 15:23:16 +02:00
book3s_rmhandlers.S KVM: PPC: Book3S PR: Fix ABIv2 on LE 2014-07-28 15:22:15 +02:00
book3s_rtas.c KVM: PPC: RTAS: Do byte swaps explicitly 2014-07-07 23:17:20 +02:00
book3s_segment.S KVM: PPC: Book3S PR: Handle Facility interrupt and FSCR 2014-05-30 14:26:22 +02:00
book3s_xics.c KVM: PPC: Enable IRQFD support for the XICS interrupt controller 2014-08-05 14:26:33 +02:00
book3s_xics.h KVM: PPC: Enable IRQFD support for the XICS interrupt controller 2014-08-05 14:26:33 +02:00
booke.c KVM: PPC: Remove the tasklet used by the hrtimer 2014-09-22 10:11:34 +02:00
booke.h KVM: PPC: Book3e: Add AltiVec support 2014-09-22 10:11:32 +02:00
booke_emulate.c KVM: PPC: BOOKE: Emulate debug registers and exception 2014-09-22 10:11:33 +02:00
booke_interrupts.S KVM: PPC: Remove 440 support 2014-07-28 15:23:15 +02:00
bookehv_interrupts.S KVM: PPC: Book3e: Add AltiVec support 2014-09-22 10:11:32 +02:00
e500.c KVM: PPC: Add devname:kvm aliases for modules 2014-01-09 10:14:00 +01:00
e500.h KVM: PPC: e500mc: Add support for single threaded vcpus on e6500 core 2014-09-22 10:11:35 +02:00
e500_emulate.c KVM: PPC: Book3e: Add AltiVec support 2014-09-22 10:11:32 +02:00
e500_mmu.c KVM: PPC: e500: Fix bad address type in deliver_tlb_misss() 2014-01-27 16:00:54 +01:00
e500_mmu_host.c KVM: PPC: e500mc: Add support for single threaded vcpus on e6500 core 2014-09-22 10:11:35 +02:00
e500_mmu_host.h KVM: PPC: E500: Make clear_tlb_refs and clear_tlb1_bitmap static 2013-01-24 19:23:33 +01:00
e500mc.c KVM: PPC: e500mc: Add support for single threaded vcpus on e6500 core 2014-09-22 10:11:35 +02:00
emulate.c KVM: PPC: Separate loadstore emulation from priv emulation 2014-07-28 18:30:10 +02:00
emulate_loadstore.c KVM: PPC: Separate loadstore emulation from priv emulation 2014-07-28 18:30:10 +02:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
irq.h KVM: PPC: Book3S: Add API for in-kernel XICS emulation 2013-05-02 15:28:36 +02:00
Kconfig KVM: PPC: Enable IRQFD support for the XICS interrupt controller 2014-08-05 14:26:33 +02:00
Makefile Here are the PPC and ARM changes for KVM, which I separated because 2014-08-07 11:35:30 -07:00
mpic.c KVM: irqchip: Provide and use accessors for irq routing table 2014-08-05 14:26:16 +02:00
powerpc.c KVM: PPC: Remove the tasklet used by the hrtimer 2014-09-22 10:11:34 +02:00
timing.c KVM: PPC: Remove DCR handling 2014-07-28 19:29:15 +02:00
timing.h KVM: PPC: Remove DCR handling 2014-07-28 19:29:15 +02:00
trace.h kvm: powerpc: booke: Move booke related tracepoints to separate header 2013-10-17 15:37:16 +02:00
trace_booke.h kvm: powerpc: booke: Move booke related tracepoints to separate header 2013-10-17 15:37:16 +02:00
trace_pr.h KVM: PPC: drop duplicate tracepoint 2014-08-05 14:23:41 +02:00